Data/hora: 11/06/2024 00:34:08

Biblioteca(s): | Embrapa Florestas.
Data corrente: | 15/09/2008
Data da última atualização: | 15/09/2008
Autoria: | NOVO, M.; VELAVAN, T. P.; ALMODÓVAR, A.; SCHULENBURG, H.; DÍAZ-COSÍN, D. J.; MICHIELS, N. K.
Título: | Microsatellite development and mating behaviour in the earthworm Hormogaster elisae.
Ano de publicação: | 2008
Fonte/Imprenta: | In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM.
Idioma: | Inglês

Conteúdo:

Hormogaster elisae is an obligate outcrossing hermaphrodite, endemic to the central area of
the Iberian Peninsula. This earthworm species is adapted to sandy soils that are poor in organic
matter. As an endogeic and large-sized earthworm, not only is its reproductive cycle relatively
long but also its cocoon production rate is low when compared to other ecological types of
earthworms. Moreover, different amount of sperm has been observed inside its four
spermathecae, which could suggest that it is capable of separating the sperm of different partners.
As a result, sexual selection and mate choice could be expected.
When working in a cryptic system as it is the soil, molecular markers are essential to assess
mating behaviour questions. Microsatellites have been proved as a useful tool for such analysis
because of their high variability. Therefore, we successfully isolated ten polymorphic microsatellite
loci for this earthworm species. Characterization of these loci using 26 individuals revealed 8 to
25 alleles per locus and high levels of heterozygosity

Categoria do assunto: | --
Registro original: | Embrapa Florestas (CNPF)
Exemplares: | CNPF - (43557-1) - UPE - PL - -- - CD0305 -  -  - DIS